Created
December 27, 2016 00:18
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import ahkab | |
class NLResistor(ahkab.devices.Component): | |
def __init__(self, part_id, n1, n2, value): | |
self.part_id = part_id | |
self.value = value | |
self.is_nonlinear = True | |
self.is_symbolic = False | |
self.n1 = n1 | |
self.n2 = n2 | |
def get_ports(self): | |
return ((n1,n2)) | |
def i(self, op_index, v, time=0): | |
return (v[0]/self.value)**0.5 | |
def g(self, op_index, v, port_index, time=0): | |
return 1/(2*(self.value*v[0])**0.5) | |
def get_output_ports(self): | |
return ((self.n1, self.n2),) | |
def get_drive_ports(self, op): | |
return self.get_output_ports() | |
def get_op_info(self, ports_v): | |
vn1n2 = float(ports_v[0][0]) | |
in1n2 = float((ports_v[0][0]/self.value)**0.5) | |
power = float(ports_v[0][0]**1.5/self.value**0.5) | |
op_keys = ['Part ID', u"R [\u2126]", "V(n1,n2) [V]", "I(n1->n2) [A]", "P [W]"] | |
op_info = [self.part_id.upper(), self.value, vn1n2, in1n2, power] | |
return op_keys, op_info | |
cir = ahkab.Circuit('test') | |
n1=cir.add_node('n1') | |
n2=cir.add_node('n2') | |
gnd=cir.add_node(cir.gnd) | |
elem1 = ahkab.devices.Resistor(part_id='R1',n1=n1,n2=n2,value=100) | |
cir.append(elem1) | |
elem2 = NLResistor(part_id='Z2',n1=n2,n2=gnd,value=100) | |
cir.append(elem2) | |
cir.add_vsource('Vref','n1',cir.gnd,dc_value=10) | |
op = ahkab.new_op() | |
res = ahkab.run(cir,op) |
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